Gear Drive with Knock sensor?? Compatible or Not....

I have a 96' chevy with vin "r" vortec engine. I want to put gear drive on this engine and want to know if anyone has found a kit to do this on this engine and if it causes problems with the knock sensor or timing problems due to knock sensor. Please let me know if it would work ok and if it did, do you know where you got it?? Will I have to get a different timing cover??